Nailbrush



Sept. 10, 1929. J, zwlcK 1,727,497

NAILBRUSH Filed March 24, 1925 Patented Sept. 10, 1929. 1

UNITED STATES PATENT OFFICE.

JACOB ZWICK, OF'NEUSTADT-ON-THE-HAARDT, GERMANY.

NAILBRUSH.

Application led March 24, 1925, Serial No. 17,988, and in Germanyy November 5, 1924.

Good work of a brush depends upon the ing of two sections, each with two rows of bristles retaining their original stiffness and bristles connected by a metal plate.

elasticity, which they will do only when al- Fig. 3 is a side view of the connecting part lowed to become clean and dry after use. In of sheet metal of the brush sections of Fig- 5 known brushes having rows of bristles facure 2'. f 5o ing each other at an angle, no provision is Fig. 4L is an end View of a further embodimade for draining soap and water from the ment of the brush with a modified connectbrushes and they are likely to become filthy ing member of the sections allowing everyy and are subject to rapid decay. Moreover, in single row of bristles to be adjusted in its such brushes, the inner rows of bristles which position to the other one. 55 are subjected to the hardest usage are the Fig. 5 shows a construction where the twoy ones which are most quickly destroyed by sections of the brush are linked together by dampness and filth. Such brushesare open connecting. part towhich bristle holders are to the objection that vthe useful life of the reversibly fixed by pivot.

inner rows kof bristles is muchfless than that Figure 6 shows the brush sections in inoper- 60 of the outer rows. ative position.

An object of the invention is to provide a Figures 7 and 8 shows, theformer in end nail cleaning brush which will be free from View and the latter in plan with the sec-y the objections stated above. An object of the tions connecting parts in section, a modificainvention is to provide a brush having option of the construction of Figures 5 and 6. 65 posed rows of bristles arranged upon open In Fig. l of the drawings, the numerals l, frame members which allow the free passage 2 designate the brush backs which serve as of soap and rinsing water, and which admit holders or supports for two groups lof brisair to the bristles to dry the same. A further tles. The back l carries two rows of bristles,

object is to provide a brush as stated above, the outer row3 functioning to clean and 70 in which the bristlesand frame are so cormassage the cuticle'while the inner row 3i so related that waterwill quickly drain-from the guides vthe nail that the bristle ofk row 4i, brush when it is placed upon a levelsurface. carried by backQ, will clean under the nail. A further object of the invention is to pro- Row 4iv also serves as a guide for positioning vide a brush in which all ofthe bristles have the finger tips to bring the cuticle opposite substantially the same effective life. More the bristles of row 3.f n

specifically an object ofthe invention is to As indicated in FigQ, the backs 1 and 2 provide a brushy having opposed rows of may be fixed in position by bridge members 5 bristles and in which brush the inclination of sheet metal, and preferably an outer row of the opposed rows may be varied to bring 4 of bristles is mounted upon kback 2. Se

' each row into the most eective position to The inner rows of bristles 3i and 4J wear perform its work. f out more quickly than the outer ones. Using Several constructions of the brush accordvery strong, elastic and lasting bristles for ing to the invention lare more or less diathe hardworking inner rows 3i andfktifand 40 grammatica-ily illustrated in attached drawsofter and weaker bristles for outer rows 3 55 ings, N and 4;", for the easier work of cleaning cuiticle, f

Fig. l shows a nailbrush of the type inprovides a construction'in whichall rows of cluding a finger yp ,lruiding brush section and a bristles may be expected tov be worn out at cleaning section. f the same time. yln this case the reversibility a5 Fig. 2 is an end View of a brushconsstof brush backs 1, 2 illustrated in further fige so CTI of the bristle rows in such way that formerly inner rows 3i andy 4i serve as outer rows, the original outer rows 3 and 4 now being used as inner rows.

The connecting members 5 of the brush shown in Fig. 2 may be removably secured to the backs by nails or the like which pass through erforations'in the metal connectinv c c plates, or the connecting members 5 may bek provided with teeth 6, as shown in Fig. 3,"for

securing the same to the backs. After removing connecting link 5 simply reverse brush sections bringing formerly outer rows 3 and to serve as inner ones and 3i and 4i to serve as outer rows. l l.

In Figure 4each row of bristles is fixed into a separate backing, the rows 131, 13 ofthe one brush section into bars 1i, 1 and the bristle rows 14i, 14 into bars 2i, 2, The dierent ledges are kept in position by two linking parts consisting of two legs of a rightangled member, the legs fitted with screw threads 7 8, each ledge being adjustedand kept in poa sition by screw nuts, bar 1 by nuts 9, 9; ledge 1i by nuts 10, 10 and bars 2, 2l by nuts 11, 12 respectively. The drawing shows clearly how easily in this construction the different rows may be exchanged with each other, reversed and adjusted into just a right position according to size of nail. v

Figure shows a very simple construction wherein the bristle backs 1, 2 are pivoted at both their ends to connecting links 13 (the f link at one end only being shown), the pivots 14 lying substantially in the respective medial planes of the rows of bristles of the brush sections 1, 2. This symmetrical arrangement of the pivots with relation kto the rows of bristles allows interchanging of inner and outer rows of bristles by simple turning of parts 1, 2 through an angle of about 90CJ as shown in dotted lines. Abutments 15i and 15 secure proper working position for bristle rows 23, 24i and 23, 24 respectively. At the same time in a brush construction as Figure 5 bristle holding backings 1, 2 may be turned about 45 degrees after use,fand' the brush thus may be brought into a suitable position to be packed for travelling as lFigure 6 shows.

. Of course in construction Figure 5 each of thebacks 1, 2 may also be split in two halves lined to the pivots by screws yand adjusted tol size of nails and kept in` position by screw nuts. In this case the connecting link 13 may also be made adjustable to regulate distance in such a way that inner bristle rows only touch butl need not'intermix brushing surfaces at the junction line of the right dihedral angle formed by the end surface of the respective rows of bristles. This construction is illustrated in Figures 7 and 8 where 16, 17 18, 19 designate four bars, each provided with one row of bristles, the bars being in pairs screwed to pivot plates 20, 21, said pivot plates provided with slots 22, allowing the bars of each of the two pairs to be adjusted according to sizeof nails. The pivot plates 20, 21 are pivoted to a connecting link consisting' of two plates 23, 24 adjustable with relation to each other for instance by pin and slot connection as shown.

AWhat I claim is Y 1. In a nail brush, a pair of brush backs providing a linger guiding section and a cleaning section, groups of bristles carried by each ofsaidbacks with they ends of the bristles Vof each group terminating subst-antially iii a single plane at right angles to the length of the bristles of the respective groups, and bridging members connecting the respective adjacent ends of said supporting backs to space the same apart and leave an open slot of substantial width therebetween.

2. The invention as claimed in claim 1 wherein said sections are adjustablyv connected by means effective to hold the sections against angular movement when the workimJr surfaces are substantially normal to eacii other.

3. A nail brush comprising a pair of brush backs each provided withgroups of bristles, and means connecting said backs to permit positioning of -thesame .with the respective groups of bristles at an Vangle to each other, said backs and connecting means having cooperating parts permitting relative rearrangement of the ybacks to bring different edges of the respective groups of bristles into proximity to each other and to position the said groups with their working surfaces sub stantially normal to each other.

4. A nail brush comprising a pair of brush backs, each provided withgroups of bristles, means pivotally connecting the said backs to permit the positioning of the bristles of the respective groups at, an angle to each other, andmeans limiting the angular nilovement ofsaid backs to two alternative positions in each of which the groups of bristles are substantially normal to each other.

` 5. A nail brush comprising a pair of backs, links pivotally supporting said backs and permanently spacing the same from each other, bristles on the respective surfaces of said backs which are presented towards each other, 'said bristles being of such length as compared'to the spacing of said backs that the bristle-bearing surfaces may be turned towards Vand past parallelism with each other, and means limiting the pivotal movement of each of said backs to an angle of substantially 90;

JACOB ZWICK. 

